Operation Manual

Troubleshooting
WorkCentre™ 5735/5740/5745/5755/5765/5775/5790
General Care and Troubleshooting
298
Streaks, lines, spots, solid lines
or dotted lines on the prints
•Clean the document glass and, if using the document feeder, also clean
the Constant Velocity Transport glass (the thin strip of glass to the left
of the document glass), especially near the plastic ramp on the glass.
• Clean the white underside of the document feeder/document cover.
•Clean the document feeder roller.
• Clean the halo guide.
• Clean the Charge Scorotron and Transfer Corotron, if available on your
device.
• Check the paper tray guides are against the paper stack.
• Run the job from the document glass.
• Check the quality of the original. Use Edge Erase to remove lines from
the edges of the document, refer to Edge Erase on page 54 of Copy.
• Use the Background Suppression feature, refer to Background
Suppression on page 51 of Copy.
• Load fresh paper.
• Do not use heavily embossed paper.
Image Loss • When copying a document from a larger paper size to a smaller size, use
Auto% to reduce the image onto the smaller size, refer to
Reduce/Enlarge on page 44 of Copy.
• Use reduction i.e. copy at 90% instead of 100%.
•Use the Auto Center feature and run the job again. Refer to Image Shift
on page 53 of Copy.
• If scanning from the document glass use Original Size to define the
document size, refer to Original Size on page 52 of Copy. Register the
document in the right rear corner and copy with the cover down.
• Do not use heavily embossed paper.
Blurred images on output • Load fresh paper.
•If copying from the document glass, check the quality of the originals,
close the cover and try again. Ensure that the original is entirely flat
against the document glass.
•Use Original Size to specify the size of the original, refer to Original Size
on page 52 of Copy.
•Clean the Charge Scorotron and Transfer Corotron, if available on your
device. Refer to Xerographic Module Maintenance on page 291.
•Clean the document glass and if using the document feeder also clean
the Constant Velocity Transport Glass (the thin strip of glass to the left
of the document glass), especially near the plastic ramp on the glass.
Refer to Document Glass and Constant Velocity Transport Glass on
page 290.
Missing characters on output • Load fresh paper.
• Try using a smoother paper.
• Select darken if the original is light or the font is colored.
Gloss variations (coining) • Check the quality of the original.
• If the original has large areas of solid density, adjust the contrast.
Problem Potential Solution